package com.graduate.controller;
import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;

import com.baomidou.mybatisplus.core.toolkit.IdWorker;
import com.graduate.common.BaseContext;
import com.graduate.common.CustomException;
import com.graduate.config.AliPayConfig;
import com.graduate.entity.*;
import com.graduate.service.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
// 1,隧道开启
// 2,测试接口
// 3,yml文件的修改
// 4,集成
// 5,不行问老师


@RestController
@RequestMapping("/alipay")
public class AliPayController {

    private static final String GATEWAY_URL = "https://openapi.alipaydev.com/gateway.do";
    private static final String FORMAT = "JSON";
    private static final String CHARSET = "UTF-8";
    //签名方式
    private static final String SIGN_TYPE = "RSA2";

    @Resource
    private AliPayConfig aliPayConfig;

    @Autowired
    private OrderService orderService;
    @Autowired
    private ShoppingCartService shoppingCartService;
    @Autowired
    private UserService userService;
    @Autowired
    private AddressBookService addressBookService;
    @Autowired
    private OrderDetailService orderDetailService;


    @Transactional
    @GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
    //public void pay(@RequestBody Orders orders, HttpServletResponse httpResponse) throws Exception
    public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {
//        //获得当前用户id
//        Long userId = BaseContext.getCurrentId();
//        long orderId = IdWorker.getId();
//        //查询当前用户的购物车信息
//        LambdaQueryWrapper<ShoppingCart> queryWrapper = new LambdaQueryWrapper<>();
//        queryWrapper.eq(ShoppingCart::getUserId,userId);
//        List<ShoppingCart> shoppingCarts = shoppingCartService.list(queryWrapper);
//        if (shoppingCarts == null || shoppingCarts.size() == 0){
//            throw  new CustomException("购物车为空，不能下单");
//        }
//        //查询用户数据
//        User user = userService.getById(userId);
//        //查询地址数据
//        Long addressBookId = orders.getAddressBookId();
//        AddressBook addressBook = addressBookService.getById(addressBookId);
//        if (addressBook == null ){
//            throw  new CustomException("用户地址信息有误，不能下单");
//        }
//        AtomicInteger amount = new AtomicInteger(0);
//        List<OrderDetail> orderDetails = shoppingCarts.stream().map((item) -> {
//            OrderDetail orderDetail = new OrderDetail();
//            orderDetail.setOrderId(orderId);
//            orderDetail.setNumber(item.getNumber());
//            orderDetail.setGoodsNote(item.getGoodsNote());
//            orderDetail.setGoodsId(item.getGoodsId());
//            orderDetail.setSetmealId(item.getSetmealId());
//            orderDetail.setName(item.getName());
//            orderDetail.setImage(item.getImage());
//            orderDetail.setAmount(item.getAmount());
//            amount.addAndGet(item.getAmount().multiply(new BigDecimal(item.getNumber())).intValue());
//            return orderDetail;
//        }).collect(Collectors.toList());
//
//
//        orders.setId(orderId);
//        orders.setOrderTime(LocalDateTime.now());
//        orders.setCheckoutTime(LocalDateTime.now());
//        orders.setStatus(1);
//        orders.setAmount(new BigDecimal(amount.get()));//总金额
//        orders.setUserId(userId);
//        orders.setNumber(String.valueOf(orderId));
//        orders.setUserName(user.getName());
//        orders.setConsignee(addressBook.getConsignee());
//        orders.setPhone(addressBook.getPhone());
//        orders.setAddress((addressBook.getProvinceName() == null ? "" : addressBook.getProvinceName())
//                + (addressBook.getCityName() == null ? "" : addressBook.getCityName())
//                + (addressBook.getDistrictName() == null ? "" : addressBook.getDistrictName())
//                + (addressBook.getDetail() == null ? "" : addressBook.getDetail()));
//



        // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
        AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);


        // 2. 创建 Request并设置Request参数
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类
        request.setNotifyUrl(aliPayConfig.getNotifyUrl());
        request.setReturnUrl(aliPayConfig.getReturnUrl());
        JSONObject bizContent = new JSONObject();
        bizContent.set("out_trade_no",aliPay.getAlipayTraceNo());  // 我们自己生成的订单编号 string
        bizContent.set("total_amount",aliPay.getTotalAmount()); // 订单的总金额 double
        bizContent.set("subject", aliPay.getSubject());   // 支付的名称 string
//        bizContent.set("out_trade_no",String.valueOf(orderId));  // 我们自己生成的订单编号 string
//        bizContent.set("total_amount",Double.valueOf(String.valueOf(amount))); // 订单的总金额 double
//        bizContent.set("subject", String.valueOf(userId));   // 支付的名称 string
        bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
        request.setBizContent(bizContent.toString());

        // 执行请求，拿到响应的结果，返回给浏览器
        String form = "";
        try {
            form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        httpResponse.setContentType("text/html;charset=" + CHARSET);
        httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
        httpResponse.getWriter().flush();
        httpResponse.getWriter().close();
//        orderService.save(orders);
//        //向订单明细表插入数据，多条数据
//        orderDetailService.saveBatch(orderDetails);
//        //清空购物车数据
//        shoppingCartService.remove(queryWrapper);
    }


    @PostMapping("/notify")  // 注意这里必须是POST接口
    public String payNotify(HttpServletRequest request) throws Exception {
        if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            System.out.println("=========支付宝异步回调========");

            Map<String, String> params = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {
                params.put(name, request.getParameter(name));
                // System.out.println(name + " = " + request.getParameter(name));
            }

            String outTradeNo = params.get("out_trade_no");
            String gmtPayment = params.get("gmt_payment");
            String alipayTradeNo = params.get("trade_no");

            String sign = params.get("sign");
            String content = AlipaySignature.getSignCheckContentV1(params);
            boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名
            // 支付宝验签
            if (checkSignature) {
                // 验签通过
                System.out.println("交易名称: " + params.get("subject"));
                System.out.println("交易状态: " + params.get("trade_status"));
                System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
                System.out.println("商户订单号: " + params.get("out_trade_no"));
                System.out.println("交易金额: " + params.get("total_amount"));
                System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
                System.out.println("买家付款时间: " + params.get("gmt_payment"));
                System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));

                // 查询订单
                QueryWrapper<Orders> queryWrapper = new QueryWrapper<>();
                queryWrapper.eq("order_id", outTradeNo);
                Orders orders = orderService.getById(queryWrapper);
                if (orders != null) {
                    orders.setStatus(2);
                    orderService.updateById(orders);
                }
            }
        }
        return "success";
    }
}
